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Comparison of PAM Formats for 200 Gb/s Short Reach Transmission Systems

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Abstract

We compared the performance of PAM4, PAM6 and PAM8 experimentally at 224/225 Gb/s using different DSP schemes including Tomlinson-Harashima precoding (THP). PAM6 shows the best overall performance. For PAM4 THP shows a large gain.

© 2020 The Author(s)

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